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Table 4 Etiology of CAP according to age

From: Viral etiology of community-acquired pneumonia among adolescents and adults with mild or moderate severity and its relation to age and severity

Etiology

14 ~ 17 yrs (n = 50)

18 ~ 44 yrs (n = 443)

45 ~ 64 yrs (n = 272)

65 ~ 94 yrs (n = 189)

p value

At least one pathogen

35 (70)

197 (44.5)

103 (37.9)

58 (30.3)

<0.001

Respiratory viruses (RV)

15 (30)

104 (23.5)

72 (26.5)

45 (23.8)

0.651

 IFV Ad

2 (4)

32 (7.2)

38 (14)

22 (11.6)

<0.001

  pH1N1

2 (4)

20 (4.5)

24 (8.8)

14 (7.4)

0.743

  sH3N2

0

9 (2)

14 (5.1)

7 (3.7)

  pH1N1 and sH3N2

0

3 (0.7)

0

1 (0.5)

 HRV

2 (4)

19 (4.3)

13 (4.8)

7 (3.7)

0.962

 AdVabcd

7 (14)

23 (5.2)

5 (1.8)

5 (2.6)

<0.001

 HMPV

0

6 (1.4)

6 (2.2)

5 (2.6)

0.524

 PIV 1

2 (4)

8 (1.8)

2 (0.7)

4 (2.1)

0.236

 PIV 3

2 (4)

7 (1.6)

3 (1.1)

2 (1.1)

0.384

 PIV 2

1 (2)

9 (2)

1 (0.4)

0

0.053

 IFV B

1 (2)

3 (0.7)

1 (0.4)

1 (0.5)

0.495

 EV

1 (2)

3 (0.7)

1 (0.4)

0

0.301

 RSVA

0

4 (0.9)

1 (0.4)

0

0.628

 RSV B

0

4 (0.9)

0

0

0.351

 HCoV OC43/HKU1

0

2 (0.5)

2 (0.7)

0

0.739

 HCoV 229E/NL63

0

3 (0.7)

1 (0.4)

0

0.853

 PIV 4

0

1 (0.2)

0

0

1.000

Bacteria

26 (52)

120 (27.1)

44 (16.2)

27 (14.3)

 

 MPabcde

25 (50)

106 (23.9)

24 (8.8)

13 (6.9)

<0.001

 LP

1 (2)

2 (0.5)

1 (0.4)

0

0.262

Typical bacteriacde

0

12 (2.7)

19 (7)

14 (7.4)

0.005

Two or more pathogens

7 (14)

40 (9)

16 (5.9)

12 (6.3)

0.141

  1. Data are expressed as n (%).
  2. a: p < 0.05, 14 ~ 17 yrs group vs 18 ~ 44 yrs group;
  3. b: p < 0.05, 14 ~ 17 yrs group vs 45 ~ 64 yrs group;
  4. c: p < 0.05, 14 ~ 17 yrs group vs 65 ~ 94 yrs group;
  5. d: p < 0.05, 18 ~ 44 yrs group vs 45 ~ 64 yrs group;
  6. e: p < 0.05, 18 ~ 44 yrs group vs 65 ~ 94 yrs group;
  7. Note: influenza virus (IFV) types A and B, human rhinovirus (HRV), adenovirus (AdV), human metapneumovirus (hMPV), parainfluenza virus (PIV) types 1, 2, 3 and 4, enterovirus (EV), respiratory syncytial virus (RSV) types A and B, human coronavirus (hCoV) types 229E, NL63, OC43 and HKU1, Mycoplasma pneumoniae (MP) and Legionella pneumophila (LP).